Firmness
Extra Firm
Type
Pocket Spring
Depth (cm)
23
Number of Layers
3
Trial Period (nights)
Warranty (years)
Price Range
£13,899 to £17,599
Best Sleeping Position(s)
Certifications
Assessed from Vispring's published specification for this mattress, captured September 2026, and from regular price comparison across our UK retail partners.
Everything in this mattress is a natural fibre or a hand-finished process. The upholstery blends British fleece wool, hand-teased horsetail, Shetland wool, silk and mohair, which means the surface breathes well and manages moisture better than synthetic foams, a real advantage if you sleep warm. Beneath that sit two layers of hand-nested calico pocket springs made from vanadium steel, 2,520 of them in the 150 x 200cm size, giving very precise, independent support across the bed. The borders use coir and wool with four rows of hand side-stitching, so the edges stay supportive rather than collapsing over time. In Extra Firm tension, this is a bed for people who like sleeping on a properly solid surface.
Key Features & what's inside
- Upholstery - Top Layer. British fleece wool, hand-teased horsetail blended with real Shetland wool, silk and mohair, plus a blend of Shetland wool and cotton, all encased in high-quality ticking. These natural fibres breathe and wick moisture, which means a cooler, drier sleep surface than most synthetic fillings.
- Springs. A two-layer, hand-nested calico pocket spring construction with 2,520 springs in the 150 x 200cm size, made from vanadium steel. Each spring moves independently, so you feel support tailored to your body rather than a single stiff platform.
- Borders. Upholstered with protective coir and wool, finished with four rows of hand side-stitching. This stiffens the perimeter, which means firmer edge support and less sagging where you sit or sleep near the side.
Layer details from vispring.com product page, September 2026.
Who's it NOT for?
This is an Extra Firm mattress at a very high price, from £13,899. If you sleep on your side, or you're lightweight, it will likely feel too hard and put pressure on your shoulders and hips. It also comes only in UK King and Super King, so smaller bedrooms and single sleepers are out.
Vispring Sublime Superb Extra Firm Mattress
View all mattresses
How firm is the Vispring Sublime Superb?
The Sublime Superb is made in four tensions: Soft, Medium, Firm and Extra Firm. This is the Extra Firm version, which suits people who want a genuinely hard, supportive surface. If you prefer a softer feel, the same mattress is available in gentler tensions.
What is the Vispring Sublime Superb made of?
Entirely natural materials: British fleece wool, hand-teased horsetail, real Shetland wool, silk, mohair and cotton in the upholstery, with coir and wool in the borders. The springs are calico pocket springs made from vanadium steel, hand-nested in two layers.
How many springs does the Vispring Sublime Superb have?
The 150 x 200cm size (5ft x 6ft 6in) contains 2,520 pocket springs across two hand-nested layers. Vispring states the count for that size only, so other sizes will differ.
How deep is the Vispring Sublime Superb mattress?
The mattress is 23cm deep, plus around 6cm of doming on top (give or take 2cm). Doming is the natural loft created by the generous wool and hair fillings, and it settles slightly with use.
What sizes does the Vispring Sublime Superb come in?
It is available in UK King and UK Super King, priced from £13,899 to £17,599. There are no small double or single options, so it is a mattress for larger bedrooms.
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